Visible index



c. E. 'AT1-woon 2,273,310

VISIBLE INDEX Feb. 17, 1942.

Filed Dec. 2o, 1940 'y Jig/ Patented Feb. 17, 1942 VISIBLE INDEX CharlesE. Attwood, Chicago, Ill., assignor to Acme Visible Records, Inc.,Chicago, Ill., a corporation of Delaware Application December 20, 1940,seria1No.370,940

5 Claims.

This invention relates to visible record systems or filing devices andparticularly to improvements in a visible index record card and a holdertherefor.

It is an object of this invention to provide a folded or double recordcard or sheet adapted to be mounted on a `generally conventional cardholder of the type having a transparent sheath embracing its lowermarginal edge, the record card and card holder being provided with novelcooperative engagement means whereby the front leaf of the folded cardis adapted to have free swinging movement on a fold line with the rearleaf without detaching the rear leaf from its mounted connection withthe card holder.

Other objects relate to details and economy of construction, andarrangement of parts which will be apparent from a consideration of thefollowing specification and drawing, wherein:

Fig. 1 is a face view of a double visible index record card mounted on acard holder illustrating my invention.

Fig. 2 is an enlarged section on the line 2-2 of Fig. 1.

Fig. 3 is a perspective view of my improved double record card.

Fig. 4 is a face View of a generally conventional card holder providedwith means for cooperative engagement with the record card illustratedin Fig. 3.

Referring to the drawing, lIl) indicates a card holder having atransparent sheath I I embracing its lower marginal edge. In theillustrations the card is shown to be provided with a weakened hingeline resulting from the perforations I2, and a, hanger I3 secured to theupper marginal edge portion of the holder I0. It will be understood,however, that separate hinges, hangers and the like means well knowntothe art may be utilized for mounting card holders swingably and inoverlapping relationship on suitable flanged frames, trays and the likemounting or supporting means.

As illustrated best in Fig. 4, the generally conventional card holder isprovided with a plurality of oblique slots I4 adjacent the upper cornersof the holder I for reception of the upper corners of a mounted recordcard, the lower marginal edge of the card being received within thesheath II. For the purpose of the present invention I do not make use ofthe slots I4, but I provide -a longitudinally extending slot I5 adjacentand parallel to the upper marginal edge of the holder I0, in substantialalignment with the 55 positioned tongue extending transverse axis ormidway between the side edges thereof.

The double or folded index card, best illustrated in Fig. 3, comprises asheet or card folded or creased on the line I6 to provide a lower leafII and a front leaf I8 of `unequal length. The front leaf I8 issufficiently shorter than the rear leaf I1 in that when the double cardis mounted on the card holder I0 with the lower marginal edge of thelower leaf I'I fully'inserted within the sheath II, the lower marginaledge of the front leaf I8 will be clear of the sheath so as to permitit'to swing freely on the fold line I6.

In order to securely mount the double card on the holder IIJ and yetpermit the front leaf I8 to have free swinging movement withoutdisengaging the lower leaf during operative use of the double card, Islit the lower leaf Il to provide a tongue I9 midway between the sideedges of the double card, parallel to the fold line I6 terminating atand opening to the said fold line. This tongue I9 is of somewhat lesserwidth than the length of slot I5, the slot I5 being spaced from thelower marginal edge of the card I0 a sufficient distance so that whenthe lower marginal edge of the lower leaf I1 is inserted within thesheath I I, the tongue I9 may be inserted through the slot I5 and tothereby lock the lower leaf II adjacent an upper marginal edge portionthereof to the card holder IIJ adjacent an upper marginal edge portionof the holder, and thus permitting the front leaf I8 to swing freelyabout the fold line I6 while permitting the lower leaf II to remainsecurely engaged at all times, and at the same time permitting normaluse and access to the lower leaf Il and both faces of the upper leaf I8.

As previously stated, the oblique slots I4 on the holder I0 are notnecessary in my invention, although the provision of a holder I0 withboth the slots I4 and the slot I5 permits the holder to be usedinterchangeably for conventional single card use or for use with mydouble card by the mere inclusion of the added slot I5.

I claim as my invention:

1. A visible index record filing device of the class describedcomprising a card holder having a sheath embracing a lower marginal edgeportion thereof and a record card or sheet doubled to form a rear leafand a relatively shorter front leaf removably mounted thereon, the lowermarginal edge portion of said rear leaf extending within said sheath andthe upper marginal edge portion thereof being formed with a centrallythrough a slot formed in said holder adjacent its upper marginal edgeportion and in locking engagement therewith, the said front leaf beingadapted to swing freely on its fold relative to said rear leaf.

2. A visible index record filing device of the class describedcomprising a card holder having a sheath embracing a lower marginal edgeportion thereof and a record card or sheet doubled to form a rear leafand a relatively shorter front leaf removably mounted thereon, th'elower inarginal edge portion of said rear leaf extending within saidsheath and the upper marginal edge portion thereof comprising anupwardly projecting tongue extending through a slot formed in saidholder adjacent and parallel to its upper marginal `edge portion and inlocking engagement thereat, the said front leaf being adapted to swingfreely on its fold relative to said rear leaf.

3. A visible index record filing device of the class describedcomprising a card holder having a sheath embracing a lower marginal edgeportion thereof and a record card or sheet doubled to form a rear leafanda relatively shorter front leaf removably mounted thereon, the lowermarginal edge portion of said rear leaf extending Within said sheath andthe upper marginal' edge portion thereof beingslotted to provide an up-Wardly projecting tongue of relatively greater width than length, thesaid tongue extending through an elongated slot, formed in said holderadjacent and parallel to its upper marginal edge portion and in lockingengagement thereat,y the said front leaf being adapted to swing freelyon its fold relative to said rear leaf.

4. A visible index record ling device of the class described comprisinga card holder having a sheath embracing a lower marginal edge portionthereof and a record card or sheet doubled to form a rear leaf and arelatively shorter front leaf removably mounted thereon, the lowermarginal edge portion of said rear leaf extending within said sheath andthe upper marginal edge portion thereof being slotted to provide an up-Wardly projecting tongue of relatively greater width than lengthterminating at the line of fold of said card and substantially centeredabout its vertical axis, the said tongue 'extending through an elongatedslot formed in said holder adjacent and parallel to its upper marginaledge portion and in locking engagement thereat, the said front leafbeing adapted to swing freely on its fold relative to said rear leaf.

5. A record card or sheet adapted to be removably mounted on a Visibleindex record card holder having a sheath embracing its lower marginaledge; and formed with a slot adjacent and parallel to` its uppermarginal edge, the said record card comprising sheet material doubled toform a rear leaf and a relatively shorter front leaf, the said rear leafbeing slotted adjacent the upper marginal edge thereof to provide anintegral upwardly projecting tongue terminating at the line of fold ofsaid leaves, th'e said tongue being adapted to extend through the Saidslot in the card holder to engage the rear leaf of the doubled cardthereto and. to permit the front leaf to swing freely on its foldrelative to said rear leaf.

CHARLES E. ATTWOOD.

